Spanish omelette

  • 1 h 10
  • Prep 15 min
  • Cook 40 min
  • Serves 4
  • medium

A thick Spanish tortilla of thinly sliced potato and onion slowly poached in olive oil, set with beaten eggs and flipped to cook both sides.

Method

  1. 1

    Quarter the potatoes lengthways and slice them thinly, about 3 mm thick.

  2. 2

    Heat the oil in the frying pan over medium heat.

  3. 3

    Add the potatoes, onion and half the salt. The oil should almost cover them.

  4. 4

    Cook gently, turning often, until the potatoes are soft enough to break when pressed but have barely coloured. The oil should bubble lazily, not fry hard.

  5. 5

    Meanwhile, beat the eggs with the rest of the salt in a large bowl.

  6. 6

    Tip the potatoes and onion into a colander set over a heatproof bowl to save the oil.

  7. 7

    Stir the hot potatoes into the eggs, crushing a few, and leave them to soak.

  8. 8

    Wipe out the pan, heat 2 tablespoons of the saved oil over medium heat, then pour in the mixture and spread it level.

  9. 9

    Cook, shaking the pan and tucking in the edges, until the base is set and golden but the top is still a little runny.

  10. 10

    Cover the pan with the plate and, in one confident move, turn the tortilla out onto it.

  11. 11

    Slide it back into the pan, uncooked side down, tuck in the edges and cook until just set.

  12. 12

    Slide onto a board and leave to rest before cutting.

Notes

  • Keep the saved oil. It is full of flavour and good for frying eggs or roasting vegetables.
  • For a juicier centre, cook the second side for only 1 to 2 minutes.
  • With or without onion is a long-running Spanish debate. Both are correct.

Equipment

Non-stick frying pan, about 24 cm, Colander, Heatproof bowl, Large mixing bowl, Flat plate larger than the pan

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